body { 

    max-width:800px;margin:auto;
}
#maincontent {
    position:absolute;
    top:0;margin:auto;text-align:center;
    width:800px;text-align:center;
}
#systemname {
    top:600px;color:white;font-size:24pt;font-weight:bold;
}
#loginbutton {
    top:700px;color:white;font-weight:bold;font-size:18pt;
}
#EM {
    
    width: 340px;
    left: 230px;
    text-align: center;
    background-color: white;
    border: 5px double red;
    height: 420px;
    top: 100px;
    text-align: center;
   margin:auto;
}

#EM1 {
    position:absolute;
    width: 800px;
    top: 10px;
    height: 950px;
    background-color: gray;
    opacity: 0.6;
    margin:auto;
}
.lefttext {
    position:absolute;
}
.rightlabel{
    position:absolute;
    text-align:right;
}
.centertext {
    position: absolute;
    text-align: center;
}
#HostHotel {
    top:430px;
    width:800px;
    text-align:center;
}
#P1 {
    top:500px;left:300px;width:500px;font-size:18pt;font-weight:bold;
}
#P2 {
    top:570px;
    width:800px;
}
#P3 {
    top:500px;left:0;width:290px;background-color:yellow;height:550px;border:double darkred 3px;
}
#P4 {
    top:510px;left:10px;width:270px;font-size:12pt;font-weight:bold;
}
#P5 {
    top:1070px;
}